BEPECO - ChoDragon9/posts GitHub Wiki λνΈμ²΄μ΄λ μΈν°νμ΄μ€ μ μ νμ΄ν μΈν°νμ΄μ€ μ μ μΈν°νμ΄μ€ λ¨Έμ§ [λΌμ΄νμ¬μ΄ν΄] https://developer.mozilla.org/en-US/docs/Web/API/MutationObserver